HCS515T/SL Code Hopping Decoder Equivalent & Substitute Parts

Part Overview

The HCS515T/SL is a Code Hopping Decoder integrated circuit manufactured by Microchip Technology, part of the KEELOQ® series. This device functions as a secure decoder for remote access and keyless entry applications, utilizing code hopping technology for enhanced security in wireless communication systems. The HCS515T/SL is currently in Active product status. Identifying equivalent substitute parts becomes necessary when the Tape & Reel packaging format is unavailable or when alternative packaging configurations better suit procurement requirements or inventory management strategies.

Substiute Parts

HCS515T/SL

Microchip TechnologyIn Stock: 656HCS515T/SL Datasheet

Current PartRFQ

HCS515/SL

Microchip TechnologyIn Stock: 6515HCS515/SL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the HCS515T/SL is determined by strict equivalence across the following critical parameters:

Mandatory Equivalence Criteria:

• Identical manufacturer (Microchip Technology)
• Identical series designation (KEELOQ®)
• Identical functional type (Code Hopping Decoder)
• Identical package specification (14-SOIC with 0.154" / 3.90mm width)
• Identical mounting technology (Surface Mount)
• Matching compliance certifications (ROHS3 Compliant, REACH Unaffected)
• Equivalent or superior moisture sensitivity rating (MSL 1)

The HCS515T/SL differs from its substitute only in packaging format: Tape & Reel (TR) versus Tube. Both variants share identical electrical characteristics, mechanical dimensions, and functional performance. The base product number HCS515 remains constant across all variants, confirming functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

Both the HCS515T/SL and HCS515/SL are Active status products from Microchip Technology with identical electrical and mechanical specifications. Selection between these variants depends solely on packaging and procurement requirements:

HCS515T/SL (Tape & Reel): Suitable for high-volume automated assembly operations where continuous reel feeding into pick-and-place equipment is standard practice.

HCS515/SL (Tube): Suitable for lower-volume production runs, manual assembly processes, or applications where tube packaging facilitates component handling and storage.

Both parts maintain ROHS3 compliance and REACH Unaffected status, confirming regulatory equivalence. The MSL rating of 1 (Unlimited) indicates no moisture sensitivity constraints for either variant. Selection between these substitutes introduces no technical risk when applied to Remote Secure Access and Keyless Entry applications.

Frequently Asked Questions (FAQ)

Q: Are HCS515T/SL and HCS515/SL electrically identical?

A: Yes. Both parts share the identical base product number HCS515 and are manufactured by Microchip Technology. Electrical performance, functional characteristics, and pin configuration are identical. The only difference is packaging format: Tape & Reel versus Tube.

Q: Can I substitute HCS515/SL (Tube) for HCS515T/SL (Tape & Reel) in production?

A: Substitution is valid from an electrical and mechanical standpoint. However, assembly process compatibility must be evaluated. Tape & Reel packaging integrates with automated pick-and-place systems, while Tube packaging requires manual or alternative feeding mechanisms. Confirm your assembly equipment can accommodate the substitute packaging format.

Q: Do both parts meet the same compliance standards?

A: Yes. Both HCS515T/SL and HCS515/SL are ROHS3 Compliant and REACH Unaffected. Regulatory and environmental compliance is equivalent across both variants.

Q: What is the significance of the MSL rating of 1?

A: MSL 1 (Unlimited) indicates the component has no moisture sensitivity limitations. Both parts can be stored and handled without moisture barrier packaging or baking requirements prior to assembly.

Q: Are there any applications where one packaging format is preferred over the other?

A: Packaging format selection is driven by manufacturing process, not application. Both formats are suitable for Remote Secure Access and Keyless Entry applications. Choose based on your assembly line capabilities and inventory management practices.

Q: What is the significance of the KEELOQ® series designation?

A: KEELOQ® is Microchip Technology's proprietary code hopping technology series. This designation confirms the device implements secure rolling code functionality for wireless remote control applications. Both substitute parts carry this designation.